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US 2003/0215683 A1Published application
Fuel cell system
OwnerRolf Bruck, Joachim Grosse +2inventors
InventorsRolf Bruck, Joachim Grosse, Manfred Poppinger, Meike Reizig
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Abstract
A fuel cell system has at least one fuel cell module operating according to the HT-PEM principle. The novel installation renders harmless at least the excess hydrogen gas that accumulates on the hydrogen side of the individual fuel cell unit, by connecting an exhaust gas catalytic converter. Environmental pollution by hydrogen is thus prevented. The catalytic converter may also be enabled to purify carbon monoxide and/or hydrocarbons from the exhaust gas.
Claims8
A fuel cell system, comprising:
- at least one fuel cell module configured for operation with hydrogen or a hydrogen-rich gas, said fuel cell module having a stack with HT-PEM fuel cells, associated membrane electrode assemblies, and an exhaust gas side;
- an exhaust-gas catalytic converter for catalytically converting at least one exhaust-gas constituent selected from the group consisting of hydrogen, carbon monoxide, and hydrocarbons present in an exhaust gas on the exhaust-gas side of said membrane electrode assemblies.
Dependencies are inferred from the claim text.